Sony Ericsson Xperia Arc s

Specifications:
2G -           GSM
3G -            Data
Memory -    1GB internal/512 MB RAM
Camera -      8MP/LED flash(HD video @ 720 p)/no secondary

Screen -   4.2 inches
Weight -   117 g
CPU -      1.4 GHz Scorpion
Gpu  -       Adreno 205
OS -          Android 2.3.4(Ginger Bread) up to 4.0
Battery -    7 h 25 min talktime
Wi -Fi -     802.11 b/g/n ,DLNA(14.2HSPDA)
Maps -       GPS and A-GPS support
                  Turn by turn navigation

plus-
1.Scratch Resistant ,Water Resistant Screen

Minus-
No Front camera For video calling and conference.

Basic Apps Needed:


Social Networking apps:
facebook
twitter

Messaging Apps:
Handscent SMS

Contacts Apps:
Phonebook 2.0

Utilities:
Advanced Task killer
Zoner Antivirus
Barcode Scanner
Go Weather


Fun And Games:
Talking tom 2
Assistant

Photo Editing  Apps:
Fat Booth
Picsin
Bald Booth
Age Booth

If You Are using this phone only as a business phone then i will recommend you some more apps tmrw to make your phone an ultimate business phone with amazing user friendly experience.